Silence is not just the absence of noise; it's a presence, a space where thoughts can grow.
The only valid data for psychology are observable behaviors.
——〈建国方略之一：孙文学说——行易知难〉，1919年5月20日
外交家应该具备灵活性和适应性，以应对快速变化的国际环境。
The only way to do great work is to love what you do.
